Verfahren zum Schützen und Verfestigen von Steinmaterial

摘要

Surfaces of stone materials, marble, sandstone, bricks, concrete and articles manufactured therefrom are consolidated and protected from atmospheric agents and pollutants by applying onto said surfaces a mixture consisting of: (a) 2-40% by weight of polyvinylidene fluoride, or 1-20% by weight of a polyalkylmethacrylate wherein the alkyl group contains from 1 to 4 carbon atoms; (b) an elastomeric copolymer of vinylidene fluoride, constituting the balance to 100% and being, in moles, 55-85% of vinylidene fluoride, 15-45% of hexafluoropropene and 0-30% of tetrafluoroethylene. r